I went to File -> Import -> VRML
I had already downloaded stellated_icosahedron_(1)_(5_color).wrl, so I selected that and hit ok, but even after waiting several minutes, absolutely nothing has happened. The tool did not seem to respond to my import request, but I could still edit the Isanth and open other blueprints.
So far I have tried using different scales like 50, 100, and 200.
In fact my initial attempt was identical to your example. Maybe the problem is on my side.